GridView 照片适配器

Question

我正在尝试从服务器获取照片到 gridview，一切看起来都正常，但是没有图像，也没有错误消息，下面是自定义适配器 java 文件。代码有什么问题？

public class PhotoAdapter extends ArrayAdapter<PhotosActivity.Photos>{

    ArrayList<PhotosActivity.Photos> photoList;
    LayoutInflater vi;
    int Resource;
    ViewHolder holder;

    public PhotoAdapter(Context context, int resource, ArrayList<PhotosActivity.Photos> objects) {
        super(context, resource, objects);
        vi = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        Resource = resource;
        photoList = objects;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {

        View v = convertView;

        if (v == null) {
            holder = new ViewHolder();
            v = vi.inflate(Resource, null);

            holder.image = (ImageView) v.findViewById(R.id.grid_item_image);

            v.setTag(holder);
        } else {
            holder = (ViewHolder) v.getTag();
        }

        Picasso.with(v.getContext()).load(photoList.get(position).getImage()).into(holder.image);

        return v;
    }

    static class ViewHolder {

        public ImageView image;

    }
}

Answer 1

实际上我的代码运行良好。这是我的错误，我没有正确设置线性布局，这就是 gridview 离开屏幕的原因。

GridView 照片适配器

GridView PhotoAdapter

android-studio

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picasso

android-gridview